Question

Sin 2 альфа/ cos^2альфа *tg альфа

Answer 1

Решение в фотографии ниже, супехов в учёбе))))

Answer 2

sin(2*alpha) / (cos^2(alpha) * tan(alpha))

To solve this expression, we can use trigonometric identities:

sin(2*alpha) = 2*sin(alpha)*cos(alpha)

cos^2(alpha) = cos(alpha)*cos(alpha)

tan(alpha) = sin(alpha) / cos(alpha)

Now we can substitute these into the original expression:

(2*sin(alpha)*cos(alpha)) / (cos(alpha)*cos(alpha) * (sin(alpha) / cos(alpha)))

We can simplify this further by cancelling out common terms:

2*sin(alpha) / sin(alpha)

This simplifies to:

2/cos(alpha)

So, the final answer is:

2/cos(alpha)